CVE-2007-2871

CVE-2007-2871 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Mozilla Firefox 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, and SeaMonkey 1.0.9 and 1.1.2, allows remote attackers to spoof or hide the browser chrome, such as the location bar, by placing XUL popups outside of the browser's content pane. NOTE: this issue can be leveraged for phishing and other attacks.

Frequently asked questions

What is CVE-2007-2871?
Mozilla Firefox 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, and SeaMonkey 1.0.9 and 1.1.2, allows remote attackers to spoof or hide the browser chrome, such as the location bar, by placing XUL popups outside of the browser's content pane. NOTE: this issue can be leveraged for phishing and other attacks.
How severe is CVE-2007-2871?
CVE-2007-2871 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-2871 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2871?
CVE-2007-2871 primarily affects Mozilla Firefox. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-2871?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-2871 published?
CVE-2007-2871 was published on 2007-06-01 and last updated on 2026-06-16.

References

Affected products (18)

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